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Nutrition in Plants - Introduction Video Lecture | Science Olympiad Class 7
FAQs on Nutrition in Plants - Introduction Video Lecture - Science Olympiad Class 7
| 1. What is nutrition in plants? |  |
Ans. Nutrition in plants refers to the process by which plants obtain and utilize essential nutrients for their growth and development. It involves the absorption of water, minerals, and other substances from the soil, as well as the synthesis of glucose through photosynthesis.
| 2. How do plants absorb nutrients? | |
Ans. Plants absorb nutrients primarily through their roots. The root hairs increase the surface area for absorption, and nutrients dissolved in water are taken up by the roots and transported to other parts of the plant through specialized tissues called xylem and phloem.
| 3. What are the essential nutrients required by plants? | |
Ans. Plants require several essential nutrients for their proper growth and development. These include macronutrients such as nitrogen, phosphorus, and potassium, as well as micronutrients like iron, zinc, and manganese. Each nutrient plays a specific role in various metabolic processes of the plant.
| 4. How do plants obtain carbon dioxide for photosynthesis? | |
Ans. Plants obtain carbon dioxide from the atmosphere for photosynthesis. Small openings called stomata present on the leaves and stems of plants allow carbon dioxide to enter and oxygen to exit. The process of photosynthesis converts carbon dioxide into glucose, which is used as a source of energy by the plant.
| 5. What happens if plants lack essential nutrients? | |
Ans. If plants lack essential nutrients, they may exhibit nutrient deficiency symptoms. These symptoms can vary depending on the nutrient deficiency but may include stunted growth, yellowing of leaves, and poor fruit or flower development. In severe cases, nutrient deficiencies can lead to plant death or reduced crop yields.
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